Curtain window



Au. 7', 192s.

A. S. CAMPBELL CURTAIN WINDOW Filed April 14, 1923 lll an intermediate starre ot resembling lilatented Ang. 7, 1.928.

UNlTED STATES P `ALTE OFFICE .nLIEBONE10l S. CAMFEELL, OF MLEDFORD, MHSSACHUS'ETTS). ASSIGNOR T0 A. S.

AMJPBELL COM'. MASSACHUSETTS.

C'URTN WINJUOW.

Application filed April 1.4!. 1923. ScraLNo. @32;037.

This invention pertains to improvements in curtain Windows is amongthe obyects et the invention to provide an attachment ot a glass or other Y traigisparent medium to a curtain Window which is of superior strength andimproved appearance.

ln the draivingrswliich show a evv preierred cmbofliinents of my invention:

Figure 1 is a rear elevation et a curtain Window;

Fin'. 2 Fie;n 1;

3 through 5 are sections corresponding; generally to the section shown in Fifi. 2., but showing various modifications et my invention Figs. 6 and 7 are similar' sections7 but throi'lgh one trame element only, shovvi.ne1 such ilranie element Wit/hits carrying curtain and 8 is a section onthe line 88 ot Fin. It showing the teeth at the tree end oit the inner flange.

Referring); to Fig. 29 I have shown the curtain material 8 concealing one side oit the iframe l'iybeinef Wrapped at 9 over the inner periphery oit the frame, the curtain material providing a cushion r10 interiorly ot the trama against Which cushion the `:.'gflass 1.1 may lie though preferably the edae and adjacent portions ot both faces there t are bound With supplemental cushioningv inatorialsuch as theadhesive tape 12. The edele ot the curtain material7 Where cut to receive the Window, is preferably reversely folded at 10 and gripped betvveen the inner 'llangel and the outer flange 14 of the trame. Such 'flanges are preferably unitary and ot relatively thinpressedmetal. The inner flange 13` is preferably serrated at its terminal edge the better to` pjrip thecurtainmaterial against an abutting to completion of the assembly o'l the 'frame 'with the curtain material. The flange 141: is connected to an upstandingperipheral flange 15 ot su'liicient height to provide a lateral abutment for the glass 11 While also providingI support. for a preferably continuous glass-retaining and edge-concealing frame portion, shown in Fig. 2 a stamped metal cover trame 16 reversely bent at its inner periphery to provide a Ielass-ennapgine; portion 17, While curved inwardly at its outer periphery providing a fastening is ar section on the line 2--2 ot suriace pursuant 'flange 18 to underlie a beadlike projection 19 extending outwardly from the upstand im;I peripheral flange 15. The outer flange lll is preferably corrugated to provide stilt-V ness to the frame, the corrugations extendin@- generally parallelto the adjacent edge et the glass.

The cover plate 16 is not relied upon primarily to hold the glass in the frame, the gglass, er the underlying tape, being cemented tothe adjacent cushioning;- surface 10 of the tabric. Thus the glass supplements the stift'-` ness of the frame.

That. embodiment of my invention shown in Fig. 3 is like the disclosure of Fie', 2, except that the bead 1.95 car-ries the peripheral flange 15 instead o'l" the contrany arrangement. Alsolin Fig. 3,1l the coveringr frame 16 has somewhat deeper fasteningl flange 18. than in Fizga, so that the appearance of the curtain Window installation as viewed from the cover side is somewhat more liu ished, there being; no ordinarily visible gap between the cover frame and the adjacent curtain material. In those embodiments of my invention shoivn in` Figs. 2. and the cover trames are preferably stamped from. a sheet .ot metal tov provide a continuous ring; ot oblong. shape.` It is, however, obvious that the shape ofthe cover frame` may lie oval,` round or of other. shape to correr spend to the desired shape of the Window,

ln Figrs.` l and` 5, I have shown the at` tachine' beads 30,311 extending; iirst. out- .vardly then upwardly and then inwardly from the peripheral flange,v thereby to pro vide an inwardly opening recess, groove or channel. extendingr entirely around the 'trame and of such inside diameter as not to interfere` With the assembly of the glass with the frame and curtain material, the recess lgroove or channel in a. plane beyond the glass to admit of the entrance therein et suitable glassoverlying elements which in Figi.. 4l. are shown as a` roda and in Fig. 5 as ott sheet material. These may? as de. sii-ed, be either continuous or discontinuous, and either compressible?. as rubber compounds. or relatively incompressibleas metal.`

lnFigrs. (S and 7, 1' have shown .trame con striurtions strengthened by separate strength eningi' strips` and diifferingrJ in this respect 'from the constructions shown in Figs. il through 5. In Fig. 6, the strengthening;

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the case may be, the points of the teeth penei purposes of clarification strip 32 is shown stiffening the eripheral flange 15 and `also extending para lel to the outer flange 14, herein shown Without corrugations. The strengthening strip 32 may also be provided with a serrated edge 33 to grip the edge of the curtain material and hold it against slippage during the bending down of the inner flange 13 to grip the curtain material. Slippage of the curtain material during this assembling operation may also be opposed by sharp teeth formed on the edge 'of the flange 13 to grip the material bent-over it during the bending operation, as well as to press this material firmly against the upst-anding'flange l5 or 32, as

trating the curtain material and absolutely precluding any working loose thereof under Vordinary strains.

In all of theembodiments of my invention, shown in the' drawings, the frame which grips the curtain material is substantially U-shaped in cross-section until after the material is wrapped about the inner flange. Then the flange is pressed outwardly and downwardly to grip the material as previously described.

In Fig.i7,ia strengthening strip 32 ,cooperates with a corrugation 34, teeth 35 on the inner upstanding edge of the strip entering the cloth and assisting inV holding it against slippage after the bending down of the inner flange 13.

It will be noted thatin all embodiments of my invention illustrated, the .glass considerably overlaps the frame to provide large bearlng area and opportunity for cement-ing,

l that the glass may stiflen the frame and vice versa.4 In each embodiment illustrated, an u standing peripheral flange is provided, W ich vextends relatively close to the periphery of the glass, stiffening means of one type or another being provided v to stiften the frame, and the various forms of bead for ,holding'the glass-engaging means (cover 16,

16 or Vretainer vat 30 or 3l) ydo not extend over the glass and can therefore be of much greater length and of much'greater stiffness of construction than where prongs, tabs or the like are bent during assembly either over the glass or over a glass-engaging part. i Y yWhilev I have shown preferred embodiments of my invention, I have vdone so for and'not for purposes ofV limitation; Thescope of my invention l is best defined vin the appended claims. i

Claims: 1 f

1. A curtain window installation comprising, in combination, a curtain, a frame member'concealed at one side by said curtain, said frame member including inner and outer flanges connected by a bend overlain by said' curtain, the curtain fabricy being clamped between said flanges, a glass over* lying said inner flange and means for securing said glass in position relatire to said frame member and said frame member prcsenting an upstanding flange abutting the edges of the glass and the inner flange for the purposes set forth.

2. A curtain window installation comprising, in combination, a curtain, a frame member concealed at one side by said curtain, said frame member including inner and outer flanges connected bv a bend overlain by said curtain, the ri 'n fabric being clamped between said fl rs, a glass overlying said inner flange am. me: for securing said glass in position relative to :said frame member and said trame member presenting an iipstainiliiig flange cooperating with the terminal end of the inner flange to grip securely the curtain fabric therelgietween.

3. A curtain w' w installation comprising, in combination, a curtain, a frame member concealed at one side by said curtain,`said frame member includingl inner and outer flanges connected by a bend overlain by said curtain, the curtain fabric being' ciamped between said flanges, a glass overlying said inner flange, a secon d frame ineinber adapted to secure said glass in position, an upstanding flange adjacent to the outer periphery of said frame member and a plurality of teeth at the terminal edge of said inner flange cooperating with said upstanding flange to prevent loosening of the curtain material around said traine after the curtain has been assembled with said frame.

4. A curtain window installation comprising a frame inember presenting inner and outer flanges adapted to clamp between them the edges of a curtain carrying se'd traine member, an upwardly extending flange connected te said outer flange, a class, and a permanent bead connected to said upwardly extending flange, and reinorable glass-en gaging means enthe opposite side of the glass from said frame, said glass-engaging means secured to the said bead for holding the glass in place.

5, A frame forming a part of a curtain window installation and comprising tire parts, one part presenting inner and outer flanges adapted to clamp the curtain material between them, an upstanding flange integral with Said outer flange, a bead carried by said upstanding flange and the other part providing a removable cover presenting a re. silient outer edge adapted to snap over .said bead to hold the glass of the installation in place.

In testimony whereof, I have signed my name to this specification.

ALPHONSO S. CAMPBELL. 

